/* Material 3 tokens — teal seed matching DriveTrack */
:root {
  --shape-xs: 8px;
  --shape-sm: 12px;
  --shape-md: 16px;
  --shape-lg: 20px;
  --shape-xl: 28px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;
  --font: "Roboto", system-ui, -apple-system, sans-serif;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-2: 0 2px 6px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.06);
  --nav-height: 72px;
}

[data-theme="light"] {
  --primary: #006874;
  --on-primary: #ffffff;
  --primary-container: #9eeffd;
  --on-primary-container: #001f24;
  --secondary-container: #cde7ec;
  --on-secondary-container: #051f23;
  --surface: #fbfdfd;
  --on-surface: #191c1d;
  --on-surface-variant: #3f484a;
  --outline-variant: #bec8ca;
  --elevation-1: #f3f7f8;
  --elevation-2: #eef3f4;
  --elevation-3: #e8eef0;
  --error: #ba1a1a;
  --on-error: #ffffff;
  --background: #fbfdfd;
  --map-tiles-filter: none;
}

[data-theme="dark"] {
  --primary: #82d3e0;
  --on-primary: #00363d;
  --primary-container: #004f58;
  --on-primary-container: #9eeffd;
  --secondary-container: #334b4f;
  --on-secondary-container: #cde7ec;
  --surface: #191c1d;
  --on-surface: #e1e3e3;
  --on-surface-variant: #bec8ca;
  --outline-variant: #3f484a;
  --elevation-1: #1e2224;
  --elevation-2: #23282a;
  --elevation-3: #282e30;
  --error: #ffb4ab;
  --on-error: #690005;
  --background: #151718;
  --map-tiles-filter: brightness(0.85) contrast(1.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: var(--font);
  background: var(--background);
  color: var(--on-surface);
  -webkit-font-smoothing: antialiased;
}

#app {
  min-height: 100dvh;
}

.screen {
  display: none;
  min-height: 100dvh;
}

.screen.active {
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* Upload */
.upload-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}

.upload-logo {
  width: 80px;
  height: 80px;
  border-radius: 40px;
  background: var(--primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.upload-logo .material-symbols-rounded {
  font-size: 40px;
  color: var(--on-primary-container);
}

.upload-container h1 {
  margin: 0 0 var(--spacing-md);
  font-size: 1.75rem;
  font-weight: 700;
}

.upload-subtitle {
  margin: 0 0 var(--spacing-xl);
  color: var(--on-surface-variant);
  line-height: 1.5;
  font-size: 0.95rem;
}

.upload-subtitle code {
  background: var(--elevation-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85rem;
}

.drop-zone {
  width: 100%;
  padding: var(--spacing-xxl) var(--spacing-xl);
  border: 2px dashed var(--outline-variant);
  border-radius: var(--shape-lg);
  background: var(--elevation-1);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.dragover {
  border-color: var(--primary);
  background: var(--primary-container);
  outline: none;
}

.drop-icon {
  font-size: 48px;
  color: var(--primary);
  display: block;
  margin-bottom: var(--spacing-md);
}

.drop-title {
  margin: 0 0 var(--spacing-xs);
  font-weight: 600;
  font-size: 1rem;
}

.drop-hint {
  margin: 0;
  color: var(--on-surface-variant);
  font-size: 0.875rem;
}

.upload-error {
  margin-top: var(--spacing-lg);
  color: var(--error);
  font-size: 0.875rem;
}

.upload-footer {
  margin-top: var(--spacing-xl);
  color: var(--on-surface-variant);
  font-size: 0.8rem;
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  padding-top: max(var(--spacing-lg), env(safe-area-inset-top));
  background: color-mix(in srgb, var(--background) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--outline-variant) 40%, transparent);
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 0;
}

.page-title {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

/* Buttons */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  background: transparent;
  color: var(--on-surface);
  transition: background 0.15s;
}

.icon-btn.tonal {
  background: var(--elevation-3);
  box-shadow: var(--shadow-1);
}

.icon-btn.sm {
  width: 32px;
  height: 32px;
  border-radius: 16px;
}

.icon-btn:hover {
  filter: brightness(1.05);
}

.icon-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.chip-btn {
  border: 1px solid var(--outline-variant);
  background: var(--elevation-1);
  color: var(--on-surface);
  border-radius: var(--shape-xl);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.text-btn {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  border: none;
  background: none;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

.text-btn .material-symbols-rounded {
  font-size: 18px;
}

/* Content */
.content {
  flex: 1;
  padding: var(--spacing-lg);
  padding-bottom: calc(var(--nav-height) + var(--spacing-lg));
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

#trip-detail-view.active {
  position: fixed;
  inset: 0;
  z-index: 200;
  padding: 0;
  max-width: none;
  margin: 0;
  background: var(--background);
}

#trip-detail-view.active ~ .bottom-nav,
body.trip-detail-open .bottom-nav,
body.trip-detail-open .app-header {
  display: none;
}

/* Hero card */
.hero-card {
  background: var(--primary-container);
  color: var(--on-primary-container);
  border-radius: var(--shape-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-1);
}

.hero-card h3 {
  margin: 0 0 var(--spacing-md);
  font-size: 1rem;
  font-weight: 700;
}

.hero-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--spacing-lg);
}

.hero-distance-label {
  font-size: 0.8rem;
  opacity: 0.7;
  margin-bottom: var(--spacing-xs);
}

.hero-distance-value {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.hero-distance-unit {
  font-size: 0.95rem;
  opacity: 0.7;
  margin-top: var(--spacing-xs);
}

.hero-stats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  font-size: 0.8rem;
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.hero-stat .material-symbols-rounded {
  font-size: 16px;
}

/* Stat grid */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--elevation-1);
  border-radius: var(--shape-sm);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-1);
}

.stat-card-icon {
  width: 28px;
  height: 28px;
  border-radius: 14px;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.stat-card-icon .material-symbols-rounded {
  font-size: 16px;
}

.stat-card-label {
  font-size: 0.7rem;
  color: var(--on-surface-variant);
  margin-bottom: 2px;
}

.stat-card-value {
  font-size: 0.95rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.section-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

/* Month nav */
.month-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.month-label {
  font-weight: 600;
  min-width: 120px;
  text-align: center;
}

/* Trip cards */
.trip-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.date-header {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.95rem;
  padding: var(--spacing-sm) 0;
}

.trip-card {
  background: var(--elevation-1);
  border-radius: var(--shape-lg);
  box-shadow: var(--shadow-2);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  overflow: hidden;
}

.trip-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.trip-card:active {
  transform: translateY(0);
}

.trip-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  gap: var(--spacing-md);
}

.trip-card-left {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  min-width: 0;
}

.trip-icon {
  width: 32px;
  height: 32px;
  border-radius: 16px;
  background: var(--primary-container);
  color: var(--on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.trip-icon .material-symbols-rounded {
  font-size: 16px;
}

.trip-card-title {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  line-height: 1.4;
  white-space: pre-line;
}

.trip-card-body {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.metrics-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.metric-item {
  flex: 1;
  text-align: center;
}

.metric-value {
  font-size: 1.125rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  margin-bottom: 2px;
}

.metric-unit {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--on-surface-variant);
}

.metric-label {
  font-size: 0.7rem;
  color: var(--on-surface-variant);
}

.metric-divider {
  width: 1px;
  height: 30px;
  background: var(--outline-variant);
  opacity: 0.5;
}

.trip-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
}

.trip-card-footer .material-symbols-rounded {
  font-size: 14px;
}

.favorite-badge {
  color: var(--primary);
}

.favorite-badge .material-symbols-rounded {
  font-size: 20px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-xl);
}

.empty-icon {
  width: 100px;
  height: 100px;
  border-radius: 50px;
  background: var(--elevation-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-xl);
}

.empty-icon .material-symbols-rounded {
  font-size: 56px;
  color: var(--on-surface-variant);
}

.empty-state h3 {
  margin: 0 0 var(--spacing-md);
  font-size: 1.25rem;
}

.empty-state p {
  margin: 0;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

/* Trip detail map */
.trip-map {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.map-host {
  position: absolute;
  inset: 0;
}

.map-overlay-btn {
  position: absolute;
  top: max(var(--spacing-lg), env(safe-area-inset-top));
  left: var(--spacing-lg);
  z-index: 30;
  box-shadow: var(--shadow-2);
}

.trip-map .maplibregl-map {
  height: 100%;
  width: 100%;
  font-family: var(--font);
}

.trip-map .maplibregl-ctrl-attrib {
  font-size: 10px;
}

/* Speed legend — matches app LeafletMap */
.speed-legend {
  position: absolute;
  top: max(var(--spacing-lg), env(safe-area-inset-top));
  right: 10px;
  width: max-content;
  background: color-mix(in srgb, var(--elevation-3) 80%, transparent);
  border: 1px solid var(--outline-variant);
  border-radius: var(--shape-sm);
  padding: 6px 8px;
  z-index: 20;
  font-size: 11px;
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  pointer-events: none;
}

.legend-title {
  font-weight: 700;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 3px;
  color: var(--on-surface);
}

.legend-item:last-child {
  margin-bottom: 0;
}

.legend-label {
  flex: 1;
  white-space: nowrap;
}

.legend-pct {
  color: var(--on-surface-variant);
  font-size: 10px;
  min-width: 26px;
  text-align: right;
  flex-shrink: 0;
}

.legend-dot {
  width: 10px;
  height: 4px;
  border-radius: 2px;
  flex-shrink: 0;
}

.map-marker-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid var(--surface);
  font-size: 14px;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  color: white;
}

.trip-panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  background: var(--surface);
  border-radius: var(--shape-lg) var(--shape-lg) 0 0;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
  max-height: 65%;
  overflow-y: auto;
  padding-bottom: env(safe-area-inset-bottom);
}

.panel-handle {
  width: 40px;
  height: 4px;
  background: var(--outline-variant);
  border-radius: 2px;
  margin: var(--spacing-md) auto;
}

.trip-detail-content {
  padding: 0 var(--spacing-lg) var(--spacing-xl);
}

.trip-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.trip-detail-header h3 {
  margin: 0 0 var(--spacing-xs);
  font-size: 1.1rem;
  font-weight: 700;
}

.trip-detail-date {
  color: var(--on-surface-variant);
  font-size: 0.85rem;
}

.trip-detail-close {
  position: fixed;
  top: max(var(--spacing-lg), env(safe-area-inset-top));
  left: var(--spacing-lg);
  z-index: 300;
}

.detail-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.detail-metric {
  background: var(--elevation-1);
  border-radius: var(--shape-sm);
  padding: var(--spacing-md);
}

.detail-metric-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  margin-bottom: var(--spacing-xs);
}

.detail-metric-label .material-symbols-rounded {
  font-size: 16px;
}

.detail-metric-value {
  font-size: 1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* Bottom nav */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  padding-bottom: env(safe-area-inset-bottom);
  display: flex;
  background: color-mix(in srgb, var(--background) 90%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid color-mix(in srgb, var(--outline-variant) 40%, transparent);
  z-index: 100;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border: none;
  background: none;
  color: var(--on-surface-variant);
  font-size: 0.7rem;
  font-weight: 500;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-item .material-symbols-rounded {
  font-size: 24px;
}

.nav-item.active {
  color: var(--primary);
}

/* Loading */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: color-mix(in srgb, var(--background) 80%, transparent);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--outline-variant);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive */
@media (min-width: 768px) {
  .content {
    padding: var(--spacing-xl);
    padding-bottom: calc(var(--nav-height) + var(--spacing-xl));
  }

  .stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  #trip-detail-view.active {
    display: grid;
    grid-template-columns: 1fr 380px;
  }

  .trip-map {
    position: relative;
  }

  .trip-panel {
    position: relative;
    max-height: none;
    border-radius: 0;
    box-shadow: none;
    border-left: 1px solid var(--outline-variant);
  }

  .trip-detail-close {
    position: absolute;
  }
}